Outdoor lamp



FIG. 1 is a front right perspective view of an outdoor lamp showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines represent the portions of the design that form no part of the claim. 

CLAIM The ornamental design for an outdoor lamp, as shown and described. 